# Program to find simple interest

• Last Updated : 21 Jun, 2022

What is ‘Simple Interest’?
Simple interest is a quick method of calculating the interest charge on a loan. Simple interest is determined by multiplying the daily interest rate by the principal by the number of days that elapse between payments.
Simple Interest formula:

Simple interest formula is given by:
Simple Interest = (P x T x R)/100
Where,
P is the principle amount
T is the time and
R is the rate

Examples :

```EXAMPLE1:
Input : P = 10000
R = 5
T = 5
Output :2500
We need to find simple interest on
Rs. 10,000 at the rate of 5% for 5
units of time.

EXAMPLE2:
Input : P = 3000
R = 7
T = 1
Output :210```

The formula to calculate the simple interest is: simple_interest = (P * T * R) / 100 where P is the principal amount, T is time & R is the rate of interest.

## C++

 `// CPP program to find simple interest for``// given principal amount, time and rate of``// interest.``#include``using` `namespace` `std;``int` `main()``{``    ``// We can change values here for``    ``// different inputs``    ``float` `P = 1, R = 1, T = 1;` `    ``/* Calculate simple interest */``    ``float` `SI = (P * T * R) / 100;` `    ``/* Print the resultant value of SI */``    ``cout << ``"Simple Interest = "` `<< SI;` `    ``return` `0;``}`

## C

 `#include ` `int` `main()``{``    ``// We can change values here for``    ``// different inputs``    ``float` `P = 1, R = 1, T = 1;` `    ``/* Calculate simple interest */``    ``float` `SI = (P * T * R) / 100;` `    ``printf``(``"Simple Interest = %f\n"``, SI);` `    ``return` `0;``}` `// This code is contributed by agarwalsajal19.`

## Java

 `// A Simple JAVA program to compute``// simple interest for given principal``// amount, time and rate of interest.``import` `java.io.*;` `class` `GFG``{``    ``public` `static` `void` `main(String args[])``    ``{  ``        ``// We can change values here for``        ``// different inputs``        ``float` `P = ``1``, R = ``1``, T = ``1``;``        ` `        ``/* Calculate simple interest */``        ``float` `SI = (P * T * R) / ``100``;``        ``System.out.println(``"Simple interest = "``+ SI);``    ``}``}` `// This code is contributed by Anant Agarwal.`

## Python3

 `# Python3 program to find simple interest``# for given principal amount, time and``# rate of interest.` `# We can change values here for``# different inputs``P ``=` `1``R ``=` `1``T ``=` `1` `# Calculates simple interest``SI ``=` `(P ``*` `R ``*` `T) ``/` `100` `# Print the resultant value of SI``print``(``"simple interest is"``, SI)`` ` `# This code is contributed by Azkia Anam.`

## C#

 `// A Simple C# program to compute``// simple interest for given principal``// amount, time and rate of interest.``using` `System;` `class` `GFG {``    ` `    ``// Driver Code``    ``public` `static` `void` `Main()``    ``{``        ` `        ``// We can change values here for``        ``// different inputs``        ``float` `P = 1, R = 1, T = 1;``        ` `        ``// Calculate simple interest``        ``float` `SI = (P * T * R) / 100;``        ``Console.Write(``"Simple interest = "``+ SI);``    ``}``}` `// This code is contributed by Nitin Mittal.`

## PHP

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## Javascript

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Output :

`Simple Interest : 0.01`

Time complexity : O(1)
Auxiliary Space : O(1)

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